Solve the problem.Students in a math class took a final exam. They took equivalent forms of the exam in monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by 
What was the average score after 18 months?
A. 28.8%
B. 25.8%
C. 30.8%
D. 23.8%
Answer: B
Mathematics
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Find the area of the shaded region.
A. ? - 2 B. ? C. 2 D. ? + 2
Mathematics
Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?A film critic is interested in knowing which is the most popular film of the year amongst Americans. To answer this question, he conducts a telephone poll in the New York metropolitan area and asks each person to name their favorite film of the year.
A. Setting may not encourage honest responses B. Selection bias C. Wording of the question D. Confounding variables E. Participation bias
Mathematics
Find the domain of the rational function. Write your answer in set-builder notation.h(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve.
- 
= 
A. 
B. 
C. - 
D. - 
Mathematics